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Contract OI history

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Nov 20, 2026 EXPIRATION

MRK $110.00 Put

MRK261120P00110000

Latest saved OI1,830Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $110.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,8329160 2026-10-02: 380 OI2026-10-05: 380 OI2026-10-06: 380 OI2026-10-07: 1,815 OI2026-10-08: 1,815 OI2026-10-09: 1,832 OI2026-10-13: 1,820 OI2026-10-14: 1,820 OI2026-10-15: 1,820 OI2026-10-16: 1,819 OI2026-10-21: 1,819 OI2026-10-23: 1,830 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,830+11
Oct 21, 20261,8190
Oct 16, 20261,819-1
Oct 15, 20261,8200
Oct 14, 20261,8200
Oct 13, 20261,820-12
Oct 09, 20261,832+17
Oct 08, 20261,8150
Oct 07, 20261,815+1,435
Oct 06, 20263800
Oct 05, 20263800
Oct 02, 2026380No prior observation